-XBT_PRIVATE smx_activity_t SIMIX_process_suspend(smx_actor_t process, smx_actor_t issuer);
-XBT_PRIVATE void SIMIX_process_resume(smx_actor_t process);
-XBT_PRIVATE int SIMIX_process_get_PID(smx_actor_t self);
-XBT_PRIVATE void SIMIX_process_set_data(smx_actor_t process, void *data);
-XBT_PRIVATE smx_actor_t SIMIX_process_get_by_name(const char* name);
-XBT_PRIVATE int SIMIX_process_is_suspended(smx_actor_t process);
-XBT_PRIVATE xbt_dict_t SIMIX_process_get_properties(smx_actor_t process);
-XBT_PRIVATE smx_activity_t SIMIX_process_join(smx_actor_t issuer, smx_actor_t process, double timeout);
-XBT_PRIVATE smx_activity_t SIMIX_process_sleep(smx_actor_t process, double duration);